No. Marijuana is one of the few drugs that isnt. Type in vasoconstrictor into wikipedia to look up the ones that are. Marijuana actually does the opposite and increase blood â¦ flow and expand the arteries.
Some of the comorbid or associated medical symptoms for Mouth numbness may include these symptoms: 1  Digestive symptoms. 2  Face symptoms. 3  Head symptoms.  Mouth 1  symptoms. Nerve symptoms. 2  Pain. Sensations.  more associated symptoms...Â».
If a trip to the dentist includes a filling, root canal or other procedure, you may receive a local anesthetic to numb the area and prevent pain. In most cases, the anesthesia used will numb the tooth for 1 to 2 hours, however your lips, face and tongue may remain numb for up to 3 to 5 hours after the injection. A numb mouth can be frustrating if you start to get hungry or try to carry on a conversation before complete feeling returns to your mouth and face.